Supplemental metallic window unit



Sept. 14, 1943. H. N. RENTON SUPPLEMENTAL METALLIC WINDOW UNIT 4Sheets-Sheet 1 Original Filed June 1 1940 V- 11v VENTOR;

. ffisvuyfll 120115011 W ATTORNEYS.

Sept. 14, 1943. 1-1. N. RENTON 2,329,485

SUPPLEMENTAL METALLIC WINDOW UNIT Original Filed June 1, 1940 4Sheets-Sheet 2 W I TNESSES: IN VEN TOR:

MA HE'IUyII I lie/Z3011, %Mw BY WW A TTORN E YS Sept. 14, 1943. H. N.RENTON SUPPLEMENTAL METALLIC WINDOW UNIT Original Filed June 1, 1940 4Sheets-Sheet 3 MQNRN A TTORNE Y5.

Sept. 14, 1943. H. N. RENTON SUPPLEMENTAL METALLIC WINDOW UNIT OriginalFiled June 1, 1940 4 Sheets-Sheet 4 FIG; 6

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INVENTQR H8111 Miien'zori, BY (W W A TTORNEYS.

Patented Sept. 14, 1943 77 2.329.485 SUPPLEMENTAL METALLIC WINDOW UNITHenry N. Kenton, Wyncote, Pa., assignor to The American Pulley Company,Philadelphia, Pa., a corporation of Pennsylvania Original applicationJune 1, 1940, Serial No. 338,416. Divided and this application June 24,1942, Serial No. 448.211

14 Claims.

This invention relates to supplemental metallic window units, that is tosay to additional units for incorporation in regular Window structuresof a permanent type, and characterized by having sliding glazed stormsashes for winter use, and sliding screen sashes for summer use, thepresent application being a division of a U. S. Patent #2,295,685,granted to-me on September 15, 1942.

Amongst the objects of my invention are to enable the component parts ofa supplemental window unit of the kind referred to to be assembled in apermanent window structure without requiring the aid of any specialtools, and without the need of screws, bolts or otherfastening devicesto subsequently hold them in place; and to make possible the ready andquick interchange of the glazed and screensashes without necessitatingthe removal of other parts of such unit.

Still another object of my invention is to attain the foregoingadvantages in a supplemental window unit which is simple inconstructiomand whereof the sash frameparts and the sash guides lendthemselves to expeditious manufacture from sheet metal at relativelysmall cost.

Other objects and attendant advantages will appear from the followingdetailed description of the attached drawings, wherein Fig. 1 shows theoutside elevation of a metallic window structure with a supplemental orauxiliary unit conveniently embodying my invention.

Fig. 2 is a vertical sectional view of the organization taken asindicated by the angled arrows IIII in Fig. 1.

Fig. 3 is a horizontal section taken as indicated by the angled arrowsIII-HI in Figs. 1 and 2. I

Fig. 4 is abroken-out perspective view of one of the sash guide elementsof my improved supplemental window unit.

Fig. 5 is a view corresponding to Fig. 2 with screen sashes substitutedfor the glazed sashes shown in the latter illustration.

Fig. 6 is a fragmentary sectional view taken cal with that featured inthe co-pending applicationhereinbefore referred to, the sides or jambsof its frame being indicated at l, the head or lintel at 2, and the sillat 3, these being all of hollow formation. As seen in Fig. 3, the jambsI have their inner faces medially recessed longitudinally as at 4 andare provided at the outside and inside comers with box beads 5 and 6.Secured centrally of the jambs l by means of screws 1 are parting strips8 of U shaped cross sectional configuration whereof the longitudinalflangessserve as guides for upper and lower sliding sashes 9 and llLthelintel 2 of the'window frame being longitudinally recessed as at II toreceive the top edge of the' upper sash, and the sloping surface l2 ofthe sill being stepped as at l3 for engagement by the bottom rail of thelower sash Hi, all as shown in Fig. 2.

The supplemental window unit, with which the present invention is moreespecially concerned, includes a pair of auxiliary jamb or sash guidestrips l5 whereof one is shown in perspective in Fig. 4. Although thesestrips may-be otherwise portioned that their central ridges l6frictionally as indicated by the angled arrows VI-VI in I venience ofexemplifying my invention is identi-- fit over the outer box beads 5 onthe jambs l of the main or permanent window, which beads extend inwardlyof the window opening as shown in Fig. 3. The sides of the centralridges l6 of each auxiliary jamb strip l5 are depressed inwardly fromopposite sides to form stop shoulders I1 which bear against the comerbeads 5 of the corresponding main jambs l and thus determine theposition of said strips in the main window structure. The outer wallsl8a and Ma of the reversely positioned outer ridges I8 and I9 of eachjamb strip l5 provide, in conjunction with the central ridge l6,parallel sash guiding grooves 20 and 2|. From Figs; 2 and 4 it is to benoted that the grooved side wall |8a of the strip l5 extends downwardlyto near the middle of the main window structure,'and that the groovedside wall Illa extends upwardly to the same extent. The purpose servedbythis construction will be explained later on herein.

My improved supplemental window unit further includes upper and lowerglazed sliding sashes 24 and 25 to correspond with those of the mainwindow. As shown in Figs. 2 and 3, the frame of the upper sash comprisesa top bar 26 and side bars 21 of Z cross section, and a bottom bar 28 ofW cross section whereof the outer trough isdisposed in the plane of theother three bars, said bars being all permanently united at cornerspreferably by welding. Set into the frame of the upper sash 24 is aglass pane 29 whereof; the edges are enveloped by compressibleweathering 30 which may be of felt or rubber. The laterally projectingflanges of the side bars of the upper sash frame are sheathed byconformative strips 3| fashioned from relatively thin non-corrodingmetal. As shown in Fig. 3, the sheathed projecting side flanges of theupper sash frame 24 are snugly engaged within the corresponding groovesor guideways 20 of the auxiliary jamb strips I and the sheathing stripsare extended inwardly of the window frame at the outer face of the uppersash to act as retainers for the glass pane 29. The top bar 26 of theupper sash is likewise provided with a sheathing strip 32 which is likethe strips on the side bars except for being fashioned to provide agroove for the retainment of a compressible hollow sealing strip 33 ofrubber or the like to bear against the under-side of the lintel 2 of themain window frame, as shown in Fig. 2. The projecting flanges of the topand side bars are apertured at intervals of their length as instanced at35 in Fig. 2 and the metal of the sheathing strips is depressed inwardlyfrom -opposite sides of said flanges into these apertures. In thissimple way it will be seen that the sheathing strips are effectivelysecured without the aid of additional fastening means. To the bottom bar28 of the upper sash 24 is suitably secured a strip 36 of thinnon-corroding spring sheet metal of which a free edge portion 36aextends downward into the inner trough of said bar.

The frame of the lower sash 25 likewise has top and side bars 31 and 38of Z cross section which are'reversed in position with respect to thecorresponding bars of the upper sash. The bottom bar 39 of the lowersash 25 is also of 2 cross section, but reversed in position withrespect to the other bars 31 and 38 of said sash, said several barsbeing permanently united at corners preferably by welding like those ofthe upper sash. The side bars of the lower sash are similarly providedwith sheathing strips 49 of noncorrosive metal which are similarlysecured to the outstanding flanges of said bars, said flanges extendingrespectively into the guide grooves 2| of the auxiliary jamb strips |5as shown in Fig. 3. The sheathing strip 4| on the top cross bar 31 ofthe lower sash 25 is extended outwardly as shown in Fig. 2 and thendownwardly as at 42 to cooperate with the free spring portion 36a of thestrip 36 on the bottom rail 28 of the upper sash 24, thereby to-form aweather-seal at that region when the sashes are in closed position. Thesheathing strip 43 on the bottom cross bar 39 of the lower sash 25 isfashioned to provide a longitudinal recess for the retainment of acompressible hollow packing strip 45 of rubber or the like which isadapted to bear weather-tight against the top surface of the sill |2 ofthe main window structure. As shown, the sheathing strips 40 and 4| onthe top and side bars 31 and 38 are extended inwardly at the inside faceof the sash 25 and the strip 43 on the bottom bar 39 extends inwardly atthe outside face of said sash to retain the glass pane 46. While theouter walls |8a and H311 of the grooves 28 and 2| in the auxiliary jambstrips l5 exert frictional pressure on the side flanges of the twosashes 24 and 25, such pressure is not sufiicient to hold the sashes inshifted position. I have accordingly provided the sashes respectivelywith suitable catches 41 and 48 whereof the slide bolts are adapted torespectively engage suitably allocated openings 49 and 50 in theauxiliary jamb strips 15. Due to the interruption of the guide grooves20 and 2| in 5 the auxiliary jamb strips |5 approximately midway of theheight of the window, as hereinbefore pointed out, it is possible toremove the upper sash 24 from below and the lower sash 25 from above,the bottom and top ends of the side walls of the grooves being bentoutwardly somewhat as at I8b and |9b in Fig. 4 to facilitate suchremoval. In this connection, it is to be noted from Fig. 3 that thewidth of the two sashes 24 and 25 is such that the auxiliary jamb strips|5 are held in place by them, as a consequence of which,

the component parts of the supplemental window,

unit can be readily and quickly installed or removed from the mainwindow structure.

The provision made for the ready removal of the glazed sashes 24 andalso makes possible the ready substitution of upper and lower slidingscreen sashe such as shown at 54 and 55 in Figs. 5-8. The frame of theupper screen sash 54, see Figs. 5 and 7, has top, bottom and side bars25 56, 51 and 58 all formed to hollow channel cross sectionalconfiguration with their hollows facing outward and with theiroutstanding flanges in a common plane, the flanges of the side bars 58extending into the guide grooves 20 in the auxiliary jamb strips I5.Stretched across the opening of the upper screen sash frame is a sheetof wire mesh, 59 which is held in place by a clamp frame 60 whereof thebars are of U shaped cross sectional configuration, the latter framebeing inserted, flange edges foremost, into the hollows of the mainframe with the margins of the screening 59 engaged as clearly shown inFigs. 5 and 7. The outstanding flanges of the several bars of the mainframe of the sash 54 are sheathed by strips 6|, 62 and 63 ofnon-corroding metal which are extended inwardly to overlap thecorresponding bars of the clamp frame 60 thereby to hold the latter inplace. The main frame of the lower screen sash 55 differs from thecorresponding frame of the upper screen sash 54 in that its top, bottomand side bars 64, 65 and 66 are of L cross sectional configuration withoutstanding flanges in a common plane whereof those at the side bars 66fit into the guide grooves 2| of the auxiliary jamb strips |5 as shownin Fig. 8. The wire mesh 61 for the lower sash is clamped by a clampframe 68 in a manner similar to that described of the upper screen sash54 while sheathing strips 69, 10 and H of non-corroding metal serve tohold the clamp frame in place. Catches to hold the upper and lowerscreen sashes 54 and 55 in open or closed positions, the slide bolts ofthese catches being adapted to engage the same apertures 49 and 59 inthe auxiliary jamb strips |5 which serve the catches 41 and 48 on theglazed sashes 24 and 25. In addition to the catches the lower screensash 55 is fitted with handles as instanced at 14 in Fig. 6 forconvenience of raising and lowering it.

Having thus described my invention, I claim:

1. A supplemental window unit for use in connection with permanentwindows of buildings, including a pair of auxiliary jamb strips eachintegrally fashioned from sheet metal with a hollow central ridge to fitsnugly over an inwardly-extending bead projection on the correspondingjamb of the permanent window, and with parallel sash guiding groovesrespectively at opposite sides of said central ridge; and upper I2and'l3 are provided iary jamb strips in place with their shouldersabutting the inner faces of the bead projections of the permanentwindow.

3. A supplemental window unit according to claim 1, in which the sideedge portions of the sashes engaged in the guide grooves of theauxiliary jamb strips are sheathed with conformative facing strips ofnon-corrosive metal.

4. A supplemental window unit according to claim 1, in which the sashesare formed from metal with side flanges to engage the guide grooves inthe auxiliary jamb strips; in which the flanges of the sashes aresheathed with conformative facing strips of non-corrosive metal; and inwhich the sheathing strips are held in place by indentation intoapertures arranged at spaced intervals in the side flanges of the sashframes. c

5. A supplemental window unit according to claim 1, in which the outerwalls of the grooves of the respective auxiliary jamb strips extenddownward and upward respectively from the top and bottom ends of saidstrips and terminate approximately midway of the height of the window,so that one sash can be inserted or removed from above, and the othersash inserted or removed from below.

6. A supplemental window unit according to claim 1, further includingretractable catches on the sashes which are engageable with apertures inthe central ridge of the auxiliary jamb strips to secure the sashes inclosed position.

A supplemental window unit for use in connection with permanent windowsof buildings, including a pair of auxiliary jamb strips each integrallyfashioned from sheet metal with a hollow central ridge to fit snuglyover an inwardlyextending bead projection on the corresponding jamb ofthe permanent window, and with parallel sash guiding groovesrespectively at opposite sides of said central ridge; and upper andlower sliding sashes with frames having metallic side bars of Zcross-section with their outwardly-extending flanges engaged incorresponding sash guiding grooves of the two auxiliary jamb strips, andwith transparent panes whereof the side edges are set into the innerangle hollows of said side bars.

8. A supplemental window unit according to claim 7, in which theoutwardly-extending flanges of the sash frame side bars are sheathedwith conformative facing strips of non-corrosive sheet metal.

, 9. A supplemental window unit according to claim 1, in which the uppersash has a metallic frame including Z section top and side bars with theoutwardly-extending flanges of said sidebars projecting intocorresponding guide grooves in the supplemental jamb strips, and a Wsection bottom bar whereof the outer trough is in the plane of the otherrails, -a transparent pane fitted into a recess jointly provided by theinner angles of the several frame bars, conformative sheathing strips ofnon-corrosive sheet metal engaged over the outer flanges of the sidebars and marginally lapping the pane, a similar sheathing strip engagedover the upwardly-projecting flange of the top bar and providing, withsaid flange,

a retaining channel for a resilient weathering insert to engage theframe lintel of the permanent window, and aspring strip secured to theinner flange of the aforesaid bottom bar and having a free edge portionwithin the inner trough of the w; and in which the lower sash has ametallic frame with Z section top and side bars which are reverselyarranged in respect to the corresponding bars of the top sash, with theprojecting flanges of said side bars extending intothe other pair ofgrooves in the auxiliary jamb strips, a bottom Z bar reverselypositioned with respect to the others, a transparent pane fltted intothe recess jointly provided by the several frame bars, sheathing stripsof nonecorrosive metal engaged over the outer flanges of the side barsand perimetrically lapping the pane as in the top sash, and sheathingstrips engaged over the projecting flanges and the top and bottom bars,the sheathing strip on the top bar of the lower sash being extendedoutward and downward into weather sealing engagement with the freeportion of the spring strip on the bottom bar of the upper sash, and thesheathing strip on the bottom bar of the lower sash being flanged toprovide with the outstanding flanges of said bottom bar, a retainingchannel for resilient weathering to engage the sill of the permanentwindow.

10. A supplemental window unit for use in connection with permanentwindows of buildings, including a pair of auxiliary jamb strips eachintegrally fashioned from sheet metal with a hollow central ridge to fitsnugly over an inwardlyextending bead projection on th correspondingjamb of the permanent window, and with parallel sash guiding groovesrespectively at opposite side of said central ridge; and upper and lowersliding sashes with side edge portions engaged in the corresponding sashguiding grooves of the two auxiliary jamb strips in which the sashes areglazed; and further including screen sashes which are interchangeablewith the glazed sashes.

11. A supplemental window unit for use in connection with permanentwindows of buildings, including a pair of auxiliary J'amb strips eachintegrally fashioned from sheet metal with a hollow central ridge to fitsnugly over an inwardlyextending bead projection on the correspondingjamb of the permanent window, and with parallel sash guiding groovesrespectively at opposite sides of said central ridge; and sliding screensashes having metallic frames with hollow top,

bottom and side bars providing outstanding perimetric flanges around theframes, the side portions of said flanges engaging the othercorresponding grooves in the auxiliary jamb strips, wire mesh panels,clamp frames with top, bottom and side bars to flt into the hollows ofthe corresponding frame bars of the respective sashes and to clamp themargins of the wire mesh within said hollows, and conformative sheathingstrips fitting over the projecting flange portions of the respectivesash frames and marginally lapping the clamp frames to hold them inplace on the sashes. I

12. A supplemental window unit according to claim 11, in which the barsof the clamp frames are of U cross-sectional configuration and engageflanges-first into the sash frame hollows.

13. A' supplemental window unit according to claim 1, wherein the frameof the upper sash comprises channeled metallic top, bottom and side barswith outstanding flanges whereof those at the sides engage correspondinggrooves in the auxiliary jamb strips, a wire mesh panel, a clamp framewhereof the bars fit into the channels of the corresponding sash framebars to clamp edge margins of the panel within said channels, andconformative sheathing strips fitting over the projecting flanges of thesash frames and marginally lapping the clamp frames to hold the latterin place on the sash; and wherein the frame of the lower sash comprisesa metallic frame with top, bottom and side bars of L cross-sectionproviding a perimetric flange whereof the side portions engage in theother corresponding grooves of the auxiliary jamb strips, a wire meshpanel, a clamp frame with top bottom and side bars fitting into theangle hollows of the corresponding lower sash frame bars to clamp theedge margins of the panel, andconformative sheathing strips fitting overthe projecting flange portions of the lower sash frame bars andmarginally lapping the clamp frame to hold the latter in place.

14. A supplemental window unit according to claim 1, in which the uppersash has a metallic frame including 2 section top and side bars with theoutwardly-extending flanges of said side bars projecting intocorresponding guide grooves in the supplemental jamb strips, and a Wsection bottom bar whereof the outer trough is in the plane of the otherrails, a transparent pane fltted into a recess jointly provided by theinner angles of the several frame bars, conformative sheathing strips ofnon-corrosive sheet metal engaged over the outer flanges of the sidebars and marginally lapping the pane, a similar sheathing strip engagedover the upwardly-projecting flange of the top bar and providing, withsaid flange, a retaining channel for a resilient weathering insert toengage the frame lintel of the permanent window, and a spring stripsecured to the inner flange of the aforesaid bottom bar and having afree edge portion within the inner trough of the W, said sheathingstrips being all secured by indentation into spaced apertures in thecorresponding frame bars of the sash; and in which the lower sash has ametallic frame with 2 section top and side bars which are reverselyarranged in respect to the corresponding bars of the top sash, with theprojecting flanges of said side bars extending into the other pair ofgrooves in the auxiliary jamb strips, a bottom 2 bar reverselypositioned with respect to the others, a transparent pane fitted intothe recess jointly provided by the several frame bars, sheathing stripsof non-corrosive metal engaged over the outer flanges or the side barsand perimetrically lapping the pane as in the top sash, and sheathingstrips engaged over the projecting flanges and the top and bottom bars,the sheathing strip on the top bar of the lower sash being extendedoutward and downward into weather sealing engagement with the freeportion of the spring strip on the bottom bar of the upper sash, and thesheathing strip on the bottom bar of the lower sash being flanged toprovide with the outstanding flanges of said bottom bar, a retainingchannel for resilient weathering to engage the sill of the permanentwindow, the sheathing strips of said lower sash being secured in thesame manner as those of the upper sash.

HENRY N. RENTON.

